US4420592A - Process for multi-step gaseous phase polymerization of olefins - Google Patents
Process for multi-step gaseous phase polymerization of olefins Download PDFInfo
- Publication number
- US4420592A US4420592A US06/309,588 US30958881A US4420592A US 4420592 A US4420592 A US 4420592A US 30958881 A US30958881 A US 30958881A US 4420592 A US4420592 A US 4420592A
- Authority
- US
- United States
- Prior art keywords
- zone
- polymerization
- olefin
- polymer
- inert gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/19—Details relating to the geometry of the reactor
- B01J2219/194—Details relating to the geometry of the reactor round
- B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
- B01J2219/1946—Details relating to the geometry of the reactor round circular or disk-shaped conical
Abstract
Description
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55140531A JPS6045645B2 (en) | 1980-10-09 | 1980-10-09 | Gas phase polymerization method of olefins |
JP55-140531 | 1980-10-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4420592A true US4420592A (en) | 1983-12-13 |
Family
ID=15270827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/309,588 Expired - Lifetime US4420592A (en) | 1980-10-09 | 1981-10-08 | Process for multi-step gaseous phase polymerization of olefins |
Country Status (6)
Country | Link |
---|---|
US (1) | US4420592A (en) |
EP (1) | EP0050013B1 (en) |
JP (1) | JPS6045645B2 (en) |
AT (1) | ATE11295T1 (en) |
CA (1) | CA1201248A (en) |
DE (1) | DE3168357D1 (en) |
Cited By (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984003888A1 (en) * | 1983-03-29 | 1984-10-11 | Union Carbide Corp | Preparation of low density, low modulus ethylene copolymers in a fluidized bed |
US4617352A (en) * | 1983-06-28 | 1986-10-14 | E. I. Du Pont De Nemours And Company | Ethylene polymer composition for blow molding |
US4703094A (en) * | 1985-02-19 | 1987-10-27 | Bp Chemicals Limited | Polymerization in several stages of alpha-olefins in the gas phase |
EP0369640A2 (en) * | 1988-11-18 | 1990-05-23 | Brown & Root, Inc.(a Delaware corporation) | Method and apparatus for gas phase polymerization of olefins in vertically stacked reactors |
US5032562A (en) * | 1989-12-27 | 1991-07-16 | Mobil Oil Corporation | Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution |
US5034480A (en) * | 1988-10-01 | 1991-07-23 | Basf Aktiengesellschaft | Avoidance of colored impurities in the preparation of ultrahigh molecular weight ethylene polymers by means of titanium-containing catalyst system |
US5284613A (en) * | 1992-09-04 | 1994-02-08 | Mobil Oil Corporation | Producing blown film and blends from bimodal high density high molecular weight film resin using magnesium oxide-supported Ziegler catalyst |
US5332706A (en) * | 1992-12-28 | 1994-07-26 | Mobil Oil Corporation | Process and a catalyst for preventing reactor fouling |
US5380496A (en) * | 1989-05-22 | 1995-01-10 | Kanegafuchi Chemical Industry Co., Ltd. | Process and apparatus for suspension polymerization |
US5525678A (en) * | 1994-09-22 | 1996-06-11 | Mobil Oil Corporation | Process for controlling the MWD of a broad/bimodal resin produced in a single reactor |
US5539076A (en) * | 1993-10-21 | 1996-07-23 | Mobil Oil Corporation | Bimodal molecular weight distribution polyolefins |
AU670826B2 (en) * | 1992-11-12 | 1996-08-01 | Novolen Technology Holdings C.V. | Gas-phase process for producing copolymers of propylene and ethylene and polyolefin films made therefrom |
US5587436A (en) * | 1992-11-12 | 1996-12-24 | Quantum Chemical Corporation | Process for controlling the polymerization of propylene and ethylene and copolymer products |
US5602067A (en) * | 1992-12-28 | 1997-02-11 | Mobil Oil Corporation | Process and a catalyst for preventing reactor fouling |
US5614456A (en) * | 1993-11-15 | 1997-03-25 | Mobil Oil Corporation | Catalyst for bimodal molecular weight distribution ethylene polymers and copolymers |
US5688865A (en) * | 1991-03-06 | 1997-11-18 | Mobil Oil Corporation | Process and system for preventing pressure tap fouling in tandem polymerization reactors |
US5705576A (en) * | 1992-11-12 | 1998-01-06 | Quantum Chemical Corporation | Process for controlling production of in-situ thermoplastic polyolefins and products |
US5799412A (en) * | 1996-04-11 | 1998-09-01 | Mitsui Petrochemical Industries, Ltd. | Drying solid polymer apparatus |
US5882750A (en) * | 1995-07-03 | 1999-03-16 | Mobil Oil Corporation | Single reactor bimodal HMW-HDPE film resin with improved bubble stability |
US6037296A (en) * | 1996-07-15 | 2000-03-14 | Mobil Oil Corporation | Comonomer pretreated bimetallic catalyst for blow molding and film applications |
US6051525A (en) * | 1997-07-14 | 2000-04-18 | Mobil Corporation | Catalyst for the manufacture of polyethylene with a broad or bimodal molecular weight distribution |
US6069212A (en) * | 1996-08-20 | 2000-05-30 | Bp Amoco Corporation | Transfer of polymer particles between vapor phase polymerization reactors containing quench-cooled subfluidized particulate beds of polymerized monomer |
EP1040868A2 (en) * | 1999-03-31 | 2000-10-04 | Mitsui Chemicals, Inc. | Method and apparatus for multistage gas phase polymerization, and device for reducing entrainment of subcomponents in polymer powder |
US6153551A (en) * | 1997-07-14 | 2000-11-28 | Mobil Oil Corporation | Preparation of supported catalyst using trialkylaluminum-metallocene contact products |
US20010019706A1 (en) * | 1998-01-29 | 2001-09-06 | Idemitsu Petrochemical Co., Ltd. | Method for polymerization of olefin |
US6294626B1 (en) | 1999-11-15 | 2001-09-25 | Equistar Chemicals, Lp | Olefin polymerization catalysts containing modified boraaryl ligands |
US6316546B1 (en) | 1991-03-06 | 2001-11-13 | Exxonmobil Oil Corporation | Ethylene polymer film resins |
US6403520B1 (en) | 1999-09-17 | 2002-06-11 | Saudi Basic Industries Corporation | Catalyst compositions for polymerizing olefins to multimodal molecular weight distribution polymer, processes for production and use of the catalyst |
US6417130B1 (en) | 1996-03-25 | 2002-07-09 | Exxonmobil Oil Corporation | One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization |
US6486089B1 (en) | 1995-11-09 | 2002-11-26 | Exxonmobil Oil Corporation | Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution |
EP1275661A1 (en) * | 2000-03-27 | 2003-01-15 | Idemitsu Petrochemical Co., Ltd. | Method of polymerizing olefin |
US6605676B1 (en) | 1994-12-30 | 2003-08-12 | Repsol Quimica, S.A. | Process for obtaining polyolefins with broad bimodal or multimodal molecular weight distributions |
WO2004039847A1 (en) * | 2002-10-30 | 2004-05-13 | Borealis Technology Oy | Process and apparatus for producing olefin polymers |
US6812304B2 (en) | 2000-06-14 | 2004-11-02 | Equistar Chemicals, Lp | Process for producing improved premixed supported boraaryl catalysts |
US20040230014A1 (en) * | 2002-04-19 | 2004-11-18 | Sumitomo Chemical Company, Limited | Process for polymerization of alpha-olefin |
US20050255265A1 (en) * | 2002-07-25 | 2005-11-17 | Gorgerin Michel O | Container formed from multimodal ethylene polymer |
US20050261434A1 (en) * | 2004-05-24 | 2005-11-24 | Piraye Yaras | Thermoplastic elastomeric blends having enhanced surface appearance |
US20060014914A1 (en) * | 2004-07-16 | 2006-01-19 | Sumitomo Chemical Company, Limited | Apparatus for continuous polymerization of olefin, method for transferring a polymer powder, and method for continuous polymerization of olefin |
US7101939B2 (en) | 2001-11-30 | 2006-09-05 | Exxonmobil Chemical Patents Inc. | Ethylene/α-olefin copolymer made with a non-single-site/single-site catalyst combination, its preparation and use |
US20070043177A1 (en) * | 2003-05-12 | 2007-02-22 | Michie William J Jr | Polymer composition and process to manufacture high molecular weight-high density polyethylene and film therefrom |
US20080146755A1 (en) * | 2006-12-19 | 2008-06-19 | Orass Hamed | Polymer supported metallocene catalyst composition for polymerizing olefins |
US20100120981A1 (en) * | 2008-09-12 | 2010-05-13 | Daeho Shin | Ethylene copolymer and a method of preparing the same |
US20100234545A1 (en) * | 2007-09-05 | 2010-09-16 | Choon Sik Shim | Ethylene copolymer having multiple pitch molecular weight distribution and the method of preparing the same |
US8097686B2 (en) | 2007-09-19 | 2012-01-17 | Basell Poliolefine Italia S.R.L. | Multistage process for the polymerization of olefins |
TWI399386B (en) * | 2006-11-15 | 2013-06-21 | Basell Poliolefine Srl | Multistage process for the polymerization of olefins |
WO2018108621A1 (en) | 2016-12-12 | 2018-06-21 | Sabic Global Technologies B.V. | Improved process and system for vapor phase polymerization of olefin monomers |
WO2018108620A1 (en) | 2016-12-12 | 2018-06-21 | Sabic Global Technologies B.V. | Improved process and system for vapor phase polymerization of olefin monomers |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3600611A1 (en) | 1986-01-11 | 1987-07-16 | Basf Ag | USE OF ANTISTATICS TO PREVENT COATING IN THE PRODUCTION OF ULTRA HIGH MOLECULAR POLYETHYLENE IN GAS PHASE REACTORS |
US4710538A (en) | 1986-03-10 | 1987-12-01 | Union Carbide Corporation | Process for the production of a sticky polymer |
JPS62201642U (en) * | 1986-06-11 | 1987-12-22 | ||
US5558472A (en) * | 1993-10-07 | 1996-09-24 | Sumitomo Chemical Company, Limited | Method and apparatus for transporting particles |
US8735513B2 (en) | 2009-11-06 | 2014-05-27 | Japan Polypropylene Corporation | Reactor for propylene polymerization and process for producing propylene polymer |
EP2602269A1 (en) | 2011-12-06 | 2013-06-12 | Basell Polyolefine GmbH | Multistage process for the polymerization of olefins |
EP2803680A1 (en) | 2013-05-16 | 2014-11-19 | Basell Polyolefine GmbH | Multistage process for the polymerization of olefins |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3971768A (en) * | 1974-12-16 | 1976-07-27 | Standard Oil Company (Indiana) | Vapor phase reactor off-gas recycle system for use in the vapor state polymerization of monomers |
US4014859A (en) * | 1973-03-29 | 1977-03-29 | Imperial Chemical Industries Limited | Production of polyethylene |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2093276A5 (en) * | 1970-06-09 | 1972-01-28 | Naphtachimie Sa | |
FR2312511A1 (en) * | 1975-05-27 | 1976-12-24 | Naphtachimie Sa | DRY POLYMERIZATION OF OLEFINS IN SERIAL REACTORS |
JPS533356A (en) * | 1976-06-30 | 1978-01-13 | Mitsubishi Heavy Ind Ltd | Laser interference |
-
1980
- 1980-10-09 JP JP55140531A patent/JPS6045645B2/en not_active Expired
-
1981
- 1981-10-08 CA CA000387595A patent/CA1201248A/en not_active Expired
- 1981-10-08 EP EP81304687A patent/EP0050013B1/en not_active Expired
- 1981-10-08 DE DE8181304687T patent/DE3168357D1/en not_active Expired
- 1981-10-08 US US06/309,588 patent/US4420592A/en not_active Expired - Lifetime
- 1981-10-08 AT AT81304687T patent/ATE11295T1/en active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4014859A (en) * | 1973-03-29 | 1977-03-29 | Imperial Chemical Industries Limited | Production of polyethylene |
US3971768A (en) * | 1974-12-16 | 1976-07-27 | Standard Oil Company (Indiana) | Vapor phase reactor off-gas recycle system for use in the vapor state polymerization of monomers |
Cited By (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984003888A1 (en) * | 1983-03-29 | 1984-10-11 | Union Carbide Corp | Preparation of low density, low modulus ethylene copolymers in a fluidized bed |
US4617352A (en) * | 1983-06-28 | 1986-10-14 | E. I. Du Pont De Nemours And Company | Ethylene polymer composition for blow molding |
US4703094A (en) * | 1985-02-19 | 1987-10-27 | Bp Chemicals Limited | Polymerization in several stages of alpha-olefins in the gas phase |
US4902483A (en) * | 1985-02-19 | 1990-02-20 | Bp Chemicals Limited | Polymerization in several stages of alpha-olefins in the gas phase |
US5034480A (en) * | 1988-10-01 | 1991-07-23 | Basf Aktiengesellschaft | Avoidance of colored impurities in the preparation of ultrahigh molecular weight ethylene polymers by means of titanium-containing catalyst system |
EP0369640A2 (en) * | 1988-11-18 | 1990-05-23 | Brown & Root, Inc.(a Delaware corporation) | Method and apparatus for gas phase polymerization of olefins in vertically stacked reactors |
EP0369640A3 (en) * | 1988-11-18 | 1990-10-31 | Brown & Root Usa, Inc. | Method and apparatus for gas phase polymerization of olefins in vertically stacked reactors |
US5380496A (en) * | 1989-05-22 | 1995-01-10 | Kanegafuchi Chemical Industry Co., Ltd. | Process and apparatus for suspension polymerization |
US5032562A (en) * | 1989-12-27 | 1991-07-16 | Mobil Oil Corporation | Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution |
US5688865A (en) * | 1991-03-06 | 1997-11-18 | Mobil Oil Corporation | Process and system for preventing pressure tap fouling in tandem polymerization reactors |
US6316546B1 (en) | 1991-03-06 | 2001-11-13 | Exxonmobil Oil Corporation | Ethylene polymer film resins |
US6458911B1 (en) | 1991-03-06 | 2002-10-01 | Exxonmobil Oil Corporation | Ethylene polymer film resins |
US5284613A (en) * | 1992-09-04 | 1994-02-08 | Mobil Oil Corporation | Producing blown film and blends from bimodal high density high molecular weight film resin using magnesium oxide-supported Ziegler catalyst |
US5705576A (en) * | 1992-11-12 | 1998-01-06 | Quantum Chemical Corporation | Process for controlling production of in-situ thermoplastic polyolefins and products |
AU670826B2 (en) * | 1992-11-12 | 1996-08-01 | Novolen Technology Holdings C.V. | Gas-phase process for producing copolymers of propylene and ethylene and polyolefin films made therefrom |
US5587436A (en) * | 1992-11-12 | 1996-12-24 | Quantum Chemical Corporation | Process for controlling the polymerization of propylene and ethylene and copolymer products |
US5602067A (en) * | 1992-12-28 | 1997-02-11 | Mobil Oil Corporation | Process and a catalyst for preventing reactor fouling |
US5332706A (en) * | 1992-12-28 | 1994-07-26 | Mobil Oil Corporation | Process and a catalyst for preventing reactor fouling |
US5473028A (en) * | 1992-12-28 | 1995-12-05 | Mobil Oil Corporation | Process and a catalyst for preventing reactor fouling |
US5539076A (en) * | 1993-10-21 | 1996-07-23 | Mobil Oil Corporation | Bimodal molecular weight distribution polyolefins |
US5614456A (en) * | 1993-11-15 | 1997-03-25 | Mobil Oil Corporation | Catalyst for bimodal molecular weight distribution ethylene polymers and copolymers |
US5525678A (en) * | 1994-09-22 | 1996-06-11 | Mobil Oil Corporation | Process for controlling the MWD of a broad/bimodal resin produced in a single reactor |
US6605676B1 (en) | 1994-12-30 | 2003-08-12 | Repsol Quimica, S.A. | Process for obtaining polyolefins with broad bimodal or multimodal molecular weight distributions |
US5882750A (en) * | 1995-07-03 | 1999-03-16 | Mobil Oil Corporation | Single reactor bimodal HMW-HDPE film resin with improved bubble stability |
US6486089B1 (en) | 1995-11-09 | 2002-11-26 | Exxonmobil Oil Corporation | Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution |
US6855654B2 (en) | 1995-11-09 | 2005-02-15 | Exxonmobil Oil Corporation | Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution |
US6417130B1 (en) | 1996-03-25 | 2002-07-09 | Exxonmobil Oil Corporation | One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization |
US6740617B2 (en) | 1996-03-25 | 2004-05-25 | Univation Technologies, Llc | One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization |
US6713425B2 (en) | 1996-03-25 | 2004-03-30 | Univation Technologies, Llc | One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization |
US5799412A (en) * | 1996-04-11 | 1998-09-01 | Mitsui Petrochemical Industries, Ltd. | Drying solid polymer apparatus |
US6037296A (en) * | 1996-07-15 | 2000-03-14 | Mobil Oil Corporation | Comonomer pretreated bimetallic catalyst for blow molding and film applications |
US6069212A (en) * | 1996-08-20 | 2000-05-30 | Bp Amoco Corporation | Transfer of polymer particles between vapor phase polymerization reactors containing quench-cooled subfluidized particulate beds of polymerized monomer |
US6051525A (en) * | 1997-07-14 | 2000-04-18 | Mobil Corporation | Catalyst for the manufacture of polyethylene with a broad or bimodal molecular weight distribution |
US6153551A (en) * | 1997-07-14 | 2000-11-28 | Mobil Oil Corporation | Preparation of supported catalyst using trialkylaluminum-metallocene contact products |
US20010019706A1 (en) * | 1998-01-29 | 2001-09-06 | Idemitsu Petrochemical Co., Ltd. | Method for polymerization of olefin |
US6407184B1 (en) | 1999-03-31 | 2002-06-18 | Mitsui Chemicals, Inc. | Method of multistage gas phase polymerization, apparatus therefor and device for reducing entrainment of subcomponents in polymer powder in apparatus for multistage gas phase polymerization |
EP1040868A2 (en) * | 1999-03-31 | 2000-10-04 | Mitsui Chemicals, Inc. | Method and apparatus for multistage gas phase polymerization, and device for reducing entrainment of subcomponents in polymer powder |
EP1040868A3 (en) * | 1999-03-31 | 2001-01-03 | Mitsui Chemicals, Inc. | Method and apparatus for multistage gas phase polymerization, and device for reducing entrainment of subcomponents in polymer powder |
US6403520B1 (en) | 1999-09-17 | 2002-06-11 | Saudi Basic Industries Corporation | Catalyst compositions for polymerizing olefins to multimodal molecular weight distribution polymer, processes for production and use of the catalyst |
US6784263B2 (en) | 1999-09-17 | 2004-08-31 | Saudi Basic Industries Corporation | Catalyst compositions for polymerizing olefins to multimodal molecular weight distribution polymer, processes for production and use of the catalyst |
US6294626B1 (en) | 1999-11-15 | 2001-09-25 | Equistar Chemicals, Lp | Olefin polymerization catalysts containing modified boraaryl ligands |
EP1275661A4 (en) * | 2000-03-27 | 2005-06-15 | Idemitsu Kosan Co | Method of polymerizing olefin |
EP1275661A1 (en) * | 2000-03-27 | 2003-01-15 | Idemitsu Petrochemical Co., Ltd. | Method of polymerizing olefin |
US6812304B2 (en) | 2000-06-14 | 2004-11-02 | Equistar Chemicals, Lp | Process for producing improved premixed supported boraaryl catalysts |
US7101939B2 (en) | 2001-11-30 | 2006-09-05 | Exxonmobil Chemical Patents Inc. | Ethylene/α-olefin copolymer made with a non-single-site/single-site catalyst combination, its preparation and use |
US6914104B2 (en) | 2002-04-19 | 2005-07-05 | Sumitomo Chemical Company, Limited | Process for polymerization of α-olefin |
US20040230014A1 (en) * | 2002-04-19 | 2004-11-18 | Sumitomo Chemical Company, Limited | Process for polymerization of alpha-olefin |
US20050255265A1 (en) * | 2002-07-25 | 2005-11-17 | Gorgerin Michel O | Container formed from multimodal ethylene polymer |
WO2004039847A1 (en) * | 2002-10-30 | 2004-05-13 | Borealis Technology Oy | Process and apparatus for producing olefin polymers |
US20060052552A1 (en) * | 2002-10-30 | 2006-03-09 | Marianna Vuorikari | Process and apparatus for producing olefin polymers |
US7115687B2 (en) | 2002-10-30 | 2006-10-03 | Borealis Technology Oy | Process and apparatus for producing olefin polymers |
US7714072B2 (en) | 2003-05-12 | 2010-05-11 | Dow Global Technologies Inc | Polymer composition and process to manufacture high molecular weight-high density polyethylene and film therefrom |
US20070043177A1 (en) * | 2003-05-12 | 2007-02-22 | Michie William J Jr | Polymer composition and process to manufacture high molecular weight-high density polyethylene and film therefrom |
US20050261434A1 (en) * | 2004-05-24 | 2005-11-24 | Piraye Yaras | Thermoplastic elastomeric blends having enhanced surface appearance |
US20060014914A1 (en) * | 2004-07-16 | 2006-01-19 | Sumitomo Chemical Company, Limited | Apparatus for continuous polymerization of olefin, method for transferring a polymer powder, and method for continuous polymerization of olefin |
US7465772B2 (en) * | 2004-07-16 | 2008-12-16 | Sumitomo Chemical Company, Limited | Apparatus for continuous polymerization of olefin, method for transferring a polymer powder, and method for continuous polymerization of olefin |
TWI399386B (en) * | 2006-11-15 | 2013-06-21 | Basell Poliolefine Srl | Multistage process for the polymerization of olefins |
US20080146755A1 (en) * | 2006-12-19 | 2008-06-19 | Orass Hamed | Polymer supported metallocene catalyst composition for polymerizing olefins |
US7662894B2 (en) | 2006-12-19 | 2010-02-16 | Saudi Bosic Industries Corporation | Polymer supported metallocene catalyst composition for polymerizing olefins |
US20100234545A1 (en) * | 2007-09-05 | 2010-09-16 | Choon Sik Shim | Ethylene copolymer having multiple pitch molecular weight distribution and the method of preparing the same |
US8076428B2 (en) | 2007-09-05 | 2011-12-13 | Sk Energy Co., Ltd. | Ethylene copolymer having multiple pitch molecular weight distribution and the method of preparing the same |
US8097686B2 (en) | 2007-09-19 | 2012-01-17 | Basell Poliolefine Italia S.R.L. | Multistage process for the polymerization of olefins |
US20100120981A1 (en) * | 2008-09-12 | 2010-05-13 | Daeho Shin | Ethylene copolymer and a method of preparing the same |
US8067511B2 (en) | 2008-09-12 | 2011-11-29 | Sk Innovation Co., Ltd. | Ethylene copolymer and a method of preparing the same |
WO2018108621A1 (en) | 2016-12-12 | 2018-06-21 | Sabic Global Technologies B.V. | Improved process and system for vapor phase polymerization of olefin monomers |
WO2018108620A1 (en) | 2016-12-12 | 2018-06-21 | Sabic Global Technologies B.V. | Improved process and system for vapor phase polymerization of olefin monomers |
US11098137B2 (en) | 2016-12-12 | 2021-08-24 | Sabic Global Technologies B.V. | Process and system for vapor phase polymerization of olefin monomers |
US11292854B2 (en) | 2016-12-12 | 2022-04-05 | Sabic Global Technologies B.V. | Process and system for vapor phase polymerization of olefin monomers |
Also Published As
Publication number | Publication date |
---|---|
EP0050013A2 (en) | 1982-04-21 |
JPS6045645B2 (en) | 1985-10-11 |
ATE11295T1 (en) | 1985-02-15 |
JPS5765703A (en) | 1982-04-21 |
EP0050013B1 (en) | 1985-01-16 |
EP0050013A3 (en) | 1982-04-28 |
DE3168357D1 (en) | 1985-02-28 |
CA1201248A (en) | 1986-02-25 |
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